C functions

sprintf()
#include 
int sprintf( char *buffer, const char *format, ... );

e.g: char result[100];
     int num=24;
     sprintf( result, "%d", num );  

scanf()
#include

int main(void) {
int n;
while (scanf("%d", &n) > 0)
printf ("%d\n", n);
return 0;
}



f - format